Why don't American Jews support Obama, the president of the USA?

Who told you they don't? Some people are not yet convinced that Obama is making progressive decisions, and some of those people are trusting that he is doing so. There are many Jews supporting Obama. When an American man defamed the president on the radio over the proprosed health care bill, he was asked if he had read the bill. He said he had not, but he was sure he was right because he heard the bad news that he was spreading from someone else. This is what goes on all the time. And it spreads distrust.